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Hi Mike,
I believe that this subject has been studied in depth by Curt Arndt so he
is the real expert however, here is something that may help.
The 100/6 parts book lists 4 screws to secure the rear quarter panels to
the inner sill (at the bottom).
The part number is *PMN0310* meaning, I believe, 3/16 diameter x 10
sixteenths long and the description is *Screws N0. 10 U.N.F x 5/8"*
*https://lbcdigital.com/bmc_publications/akd1423/
<https://lbcdigital.com/bmc_publications/akd1423/>*
I'm aware that the 100 used many 2BA screws which seemed to slowly be
replaced with #10/32 screws as the years went by.
My very early 100 had a lot of 2BA but also many 10/32.
M
On Fri, Feb 22, 2019 at 10:55 AM mike brooks <hypercubic@yahoo.co.uk> wrote:
> I hesitate to write this as I am effectively arguing with people far more
> knowledgeable than I am. However, I have several times noticed that people
> are saying that 10 32 bolts or screws were used on Healeys when I know they
> are actually 2BA. Although UK started using UNC and UNF bolts and screws as
> Whitworth and BSF went out of fashion ( and prior to metrication), the
> small Unified sizes that had numerical- only designations (like 8, 10)
> were very rarely used in the UK, where we carried on with BA for the
> smaller sizes.
>
> Rgds
>
> Mike Brooks
> BN2 Scotland
>
> Sent from Yahoo Mail on Android
> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>
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<div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon=
t-family:comic sans ms,sans-serif;font-size:small">Hi Mike,</div><div class=
=3D"gmail_default" style=3D"font-family:comic sans ms,sans-serif;font-size:=
small">I believe that this subject has been studied in depth by Curt Arndt =
so he is the real expert however, here is something that may help.</div><di=
v class=3D"gmail_default" style=3D"font-family:comic sans ms,sans-serif;fon=
t-size:small">The 100/6 parts book lists 4 screws to secure the rear quarte=
r panels to the inner sill (at the bottom).</div><div class=3D"gmail_defaul=
t" style=3D"font-family:comic sans ms,sans-serif;font-size:small">The part =
number is <i><b>PMN0310</b></i> meaning, I believe, 3/16 diameter x 10 sixt=
eenths long and the description is <i><b>Screws N0. 10 U.N.F x 5/8&quot;</b=
></i></div><div class=3D"gmail_default" style=3D"font-family:comic sans ms,=
sans-serif;font-size:small"><i><b><span style=3D"color:rgb(0,0,255)"><a hre=
f=3D"https://lbcdigital.com/bmc_publications/akd1423/&quot;>https://lbcdigital.c=
om/bmc_publications/akd1423/</a></span><br></b></i></div><div class=3D"gmai=
l_default" style=3D"font-family:comic sans ms,sans-serif;font-size:small">I=
&#39;m aware that the 100 used many 2BA screws which seemed to slowly be re=
placed with #10/32 screws as the years went by. <br></div><div class=3D"gma=
il_default" style=3D"font-family:comic sans ms,sans-serif;font-size:small">=
My very early 100 had a lot of 2BA but also many 10/32.</div><div class=3D"=
gmail_default" style=3D"font-family:comic sans ms,sans-serif;font-size:smal=
l"><br></div><div class=3D"gmail_default" style=3D"font-family:comic sans m=
s,sans-serif;font-size:small">M<br></div></div></div><br><div class=3D"gmai=
l_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Feb 22, 2019 at 10:5=
5 AM mike brooks &lt;<a href=3D"mailto:hypercubic@yahoo.co.uk&quot; target=3D"_b=
lank">hypercubic@yahoo.co.uk</a>&gt; wrote:<br></div><blockquote class=3D"g=
mail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">I hesitate to write this as I am effectively ar=
guing with people far more knowledgeable than I am. However, I have several=
times noticed that people are saying that 10 32 bolts or screws were used =
on Healeys when I know they are actually 2BA. Although UK started using UNC=
and UNF bolts and screws as Whitworth and BSF went out of fashion ( and pr=
ior to metrication), the small =C2=A0Unified sizes that had numerical- only=
designations (like 8, 10) were very rarely used in the UK, where we carrie=
d on with BA for the smaller sizes.<div id=3D"gmail-m_339455224000603223gma=
il-m_-127030419220680456yMail_cursorElementTracker_1550785863649"><br></div=
><div id=3D"gmail-m_339455224000603223gmail-m_-127030419220680456yMail_curs=
orElementTracker_1550785865399">Rgds</div><div id=3D"gmail-m_33945522400060=
3223gmail-m_-127030419220680456yMail_cursorElementTracker_1550785866493"><b=
r></div><div id=3D"gmail-m_339455224000603223gmail-m_-127030419220680456yMa=
il_cursorElementTracker_1550785867721">Mike Brooks</div><div id=3D"gmail-m_=
339455224000603223gmail-m_-127030419220680456yMail_cursorElementTracker_155=
0785871751">BN2 Scotland<br><br><div id=3D"gmail-m_339455224000603223gmail-=
m_-127030419220680456ymail_android_signature"><a href=3D"https://go.onelink=
.me/107872968?pid=3DInProduct&amp;c=3DGlobal_Internal_YGrowth_AndroidEmailS=
ig__AndroidUsers&amp;af_wl=3Dym&amp;af_sub1=3DInternal&amp;af_sub2=3DGlobal=
_YGrowth&amp;af_sub3=3DEmailSignature" target=3D"_blank">Sent from Yahoo Ma=
il on Android</a></div></div></blockquote></div>
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